NAVYINSTALLATION ID: CA917002477500

Mare Island Naval Shipyard

$290M

$63.7M

The estimated amount of money needed for evaluation and cleanup of hazardous sites at this installation.

Expected Completion Date

2024

The date by which the DOD estimates cleanup of all sites will be complete. Long term monitoring may continue after this date.

52 Hazardous Sites

Below are the locations of hazardous sites associated with this military installation, according to the DOD. A site’s contamination may affect a much larger area, including public and private lands and the water supplies beneath them.

High Risk

Medium Risk

Low Risk

Risk Not Evaluated or Not Required

Response Complete

We haven't independently confirmed the location of every site. If you notice a site placed at the incorrect location, please contact us.

Not all sites in the DOD data include location information, so there may be sites listed below that are missing from the map. The risk level of a site refers to a relative risk assessment made by the DOD to prioritize the cleanup of sites.

Land Controls & Restrictions

Many sites have been declared “clean” by the DOD but are still not safe for people. This military installation is safe only with the following conditions in place:
deed restrictions, fences, warning signs.see more »annual written certification of compliance with lucsa deed restriction is documented in the parcel deed.notice to federal or state regulators, property owners, etc. before changes in land use or ownership.a barrier, including but not limited to a paved surface or landfill cap, must be maintained in order to prevent exposure to contaminants, including vapor intrusion into an enclosed structure.gate(s) and/or door(s) must be locked to prevent access and exposure to contaminants.notices other than in deed, e.g., newspaper advertisements.a warning sign is in place surrounding the areaa fence around controlled area, with or without gate.incorporation of lucs into a base master planprohibit residential use in certain areas, unless prior written approval of the navy and lead regulatory agency is obtained.prohibits disturbance of surface or subsurface soil due to invasive activities such as construction, unless prior written approval of the navy and lead regulatory agency is obtained.prohibit construction and/or operation of businesses, structures or other areas frequented by sensitive populations, such as children and the elderly, unless prior written approval of the navy and lead regulatory agency is obtained.prohibits the disturbance or use of existing groundwater wells, unless prior written approval of the navy and lead regulatory agency is obtained.a landfill cover at the site prevents exposure to contaminated soil and reduces infiltration of groundwater. this cover will be inspected and maintained. « see less

15 Active Sites

Sites where military cleanup actions are still ongoing. The risk level of a site refers to a relative risk assessment made by the DOD, which prioritizes the cleanup of sites that pose greatest threat to safety, human health, and the environment.

Sediment (Human): Low Risk

Explosives & Munitions

MARE ISLAND NSY

Explosive Ordnance Disposal Area

Cost

$4.5M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Oct 2018

This site is under ongoing monitoring until Jan 2050

37 Inactive Sites

Sites where military cleanup actions are complete, according to the DOD. Note that this status does not necessarily mean the site is no longer hazardous, as many of these sites are put under long-term monitoring or other restrictions.

Update (Dec. 5, 2017): We have changed the source of the installation cost data after being notified by the Department of Defense that they erroneously reported their own cost figures on the DERP website. We are now displaying the costs the department says are the most accurate available, from the Pentagon’s DERP database that we received in a FOIA request.

Note: The risk level of a site refers to a relative risk assessment made by the DOD to prioritize the cleanup of sites.